What is the complete subject and the complete predicate of this sentence? Durbin was built in 1930, while Fall Creek was built in 1955.

The sentence, 'Durbin was built in 1930, while Fall Creek was built in 1955' is a 'Compound Sentence' made up of Two Main Clauses. A Main Clause is a Clause with a Finite Verb, which makes complete sense by itself and hence it is also known as an 'Independent Clause.'

The first Main Clause of this sentence is, 'Durbin was built in 1930.' In this Main Clause, 'Durbin' is the Subject and 'was built in 1930' is the Predicate.

The second Main  Clause of this sentence is  'while Fall Creek was built in 1955.'  In this Main Clause, 'Fall Creek' is the Subject and 'was built in 1955' is the Predicate.

'while' is the conjunction which links both the Main Clauses of the Compound Sentence, 'Durbin was built in 1930, while Fall Creek was built in 1955.'